docstr: Initialize default graph model repository with operations from composer requirements 
docstr_tok: ["Initialize","default","graph","model","repository","with","operations","from","composer","requirements"]
code: def _init_default_graph_model_repo(self):
      """Initialize default graph model repository with operations from composer requirements"""
      repo = PipelineOperationRepository(
          operations_by_keys={
              "primary": self.requirements.primary,
              "secondary": self.requirements.secondary,
          }
      )
      return repo
  
file_path: FEDOT/fedot/core/pipelines/pipeline_node_factory.py
imports: from random import choice
  from typing import Optional, List
  from golem.core.optimisers.graph import OptNode
  from golem.core.optimisers.opt_node_factory import OptNodeFactory
  from fedot.core.pipelines.pipeline_advisor import PipelineChangeAdvisor, check_for_specific_operations
  from fedot.core.pipelines.pipeline_composer_requirements import PipelineComposerRequirements
  from fedot.core.repository.pipeline_operation_repository import PipelineOperationRepository
  from fedot.utilities.custom_errors import MethodNotImplementError
label_desc: Use image node_id 2 for calling the PipelineOptNodeFactory obj's underlying member method code with example usage: obj._init_default_graph_model_repo() and returns: repo